French Defence: Exchange Variation
The symmetrical exchange — a microscopic pull with better development.
French Defence: Exchange Variation is one of the most compelling entries in the Encyclopaedia of Chess Openings — and a line that repays every hour you sink into it.
After 7.Bg5 the position resolves into a tense centre: the central pawns still face each other, and the timing and manner of the coming exchange shapes the whole middlegame, with the e-file fully open.
This is a branch of the French Defence. If you are new to the system, start with the parent guide and return here when you want to go one move deeper.
The moves
After 7. Bg5 — French Defence: Exchange Variation main line
Position breakdown
A factual read of the position after the main line — the files, the centre, the pawn structure and king safety that decide how the middlegame is played. These are computed from the actual board, not generic advice.
Files
Centre control
Tense centre
The d4/d5/e4/e5 squares — who occupies the centre decides how open the game becomes.
Pawn skeleton
Pawns only — the structure that explains every open file and majority at a glance.
Material level
Queenside pawns 3–3
Kingside pawns 3–3
Development
Knight, dark-squared bishop & light-squared bishop active
Knight & dark-squared bishop active
King safety
White king g1
Castled kingside
Black king g8
Castled kingside
Computed from the final position of the main line above — 13 plies, black to move.
Strategic ideas
Ideas for White
Hold the e5 wedge and attack with f4-f5 space gains, while meeting Black's ...c5/...f6 counterstrikes with precise central play.
Ideas for Black
Attack the base of the chain with ...c5 and ...f6, exploit the light squares with ...Qb6/...Qa5 hits, and free the c8-bishop with ...b6/...Ba6 timing.
Plans & pawn structures
- 1Fight for the e-file: it is the only fully open line in the position, and the side that doubles rooks on it first controls the game.
- 2The central tension is the key decision: releasing it too early hands the opponent a free tempo and a target, so keep it until a capture wins a file, a diagonal or a clear structural edge.
- 3Watch the pawn breaks — both yours and your opponent's. In these structures the player who times the central break better usually wins the game.
Typical middlegame structures
The main line leads to a tense centre: the central pawns still face each other, and the timing and manner of the coming exchange shapes the whole middlegame. It leaves the e-file open — that is where the rooks belong and where the middlegame is decided.
Traps & tactical motifs
The Milner-Barry Gambit traps: after 6...Qb6,careless piece play lets Black's ...Qxb2 and ...Bd7 hits win material.
In the Winawer, grabbing on c3 with the wrong move order loses a piece to the ...Qa5 double hits.
How to Play Against the Exchange Variation
- Do not let Black monopolise the e-file — get a rook there first, because the only open line in the position is worth more than any small material or space edge.
- As White, resolve the central tension on your terms: force the exchange that gives you the better structure rather than letting the opponent choose the moment.
Masters & history
Study plan & who it's for
Very easy to learn and hard to hate: clear development schemes, natural moves and forgiving structures make this a superb first choice for Black players.
Play through the main line above until the piece setup feels natural.
Learn the two or three critical pawn breaks for both sides.
Drill one variation at a time — always connecting moves to plans.